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$ABCD$ is a quadrilateral with $\angle ABC = 90^\circ$, $\angle ACD = 90^\circ$, $AC = 30$, $BC = 18$ and $AD = 50$. If $BD = a\sqrt{b}$, what is the value of $a + b$?

 Jan 18, 2021
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BD = a√b = 2√769            a + b = 771

 Jan 18, 2021

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